54
CHAP1ER
SIX
2
Set
the
valve
spnng
seat
m
position
on
the
top
of
the
block
and
over
the
valve
stem
3
Place
the
oil
seal
over
the
valve
stem
4
Place
the
mner
and
outer
valve
spnngs
over
the
valve
stem
S
Place
the
spnng
retamer
over
the
springs
compress
spnngs
With
spring
compressor
Figure
55
and
mstall
valve
collets
around
valve
stem
so
that
they
lock
onto
stem
6
Release
spnng
compressor
If
collets
are
firm
ly
locked
onto
the
groove
m
the
valve
stem
assembly
IS
complete
7
Install
the
rocker
guIde
on
top
of
the
valve
stem
when
assemblmg
the
rocker
pivot
assembly
VaIve
Rocker
Pivot
Assembly
1
Thread
lock
nut
onto
valve
rocker
pivOt
and
place
rocker
retaIner
over
the
valve
rocker
pivOt
2
Thread
the
above
assembly
mto
the
rocker
bushIng
protrudIng
from
the
head
Camshaft
Assembly
1
Mount
the
locatIng
plate
on
the
front
of
the
head
as
shown
m
FJgIlI
1
56
2
From
the
back
of
the
head
carefully
InSert
the
camshaft
through
the
four
camshaft
beanngs
being
ca
efu1
not
to
move
or
damage
the
bear
ings
NOTE
Install
the
CQJ7IShaft
sprocket
onto
the
camshaft
so
that
the
three
locating
holes
are
at
the
top
left
and
bottom
h
1
3
Install
the
camshaft
sprocket
and
fuel
pump
cam
onto
the
front
of
the
camshaft
and
torque
to
specificatIon
4
Check
the
camshaft
for
end
play
using
a
feeler
gauge
as
preViously
described
Rocker
Pivot
Assembly
1
Push
down
on
valve
spnng
with
screwdriver
and
insert
rocker
piVOt
arm
between
camshaft
and
valve
stem
Insert
rocker
valve
guide
onto
top
of
valve
stem
at
this
time
2
Install
valve
rocker
springs
over
top
of
rocker
pivot
arm
Piston
and
Connecting
Rod
Assembly
1
Assemble
the
four
pistons
pms
and
connect
mg
rods
Secure
piston
pm
The
connecting
rod
IS
press
fitted
onto
the
pISton
pin
With
from
1
to
3
tons
of
force
NOTE
The
pistons
are
marked
with
an
F
which
should
point
toward
the
front
of
the
engine
The
connecting
rods
must
be
installed
so
that
the
011
Jet
In
the
large
end
IS
positioned
to
ward
the
right
Side
of
the
tnglne
The
center
of
the
piston
pin
IS
oD
set
In
relation
to
the
center
of
the
piston
so
correct
assembly
is
cntical
2
Use
a
nng
expander
to
install
the
rings
onto
the
pistons
Install
the
top
and
rmddle
nngs
with
the
marks
up
3
Lubncate
the
rod
bearings
hghtly
and
mstall
them
into
their
respective
connectIng
rods
and
rod
caps
ENGINE
59
2
Coat
the
pan
gasket
on
both
sides
With
gasket
compound
and
attach
the
oil
pan
to
the
cyhnder
block
Torque
as
specIfied
Manifold
and
Carburetor
Installation
1
Install
the
mtake
and
exhaust
manIfolds
WIth
associated
gasket
to
the
cylmder
head
2
Mount
the
carburetor
and
gasket
to
the
mtake
manIfold
2
Adjust
all
mtake
and
exhaust
valves
to
the
specIfied
clearance
for
a
cold
engme
Clutch
Assembly
Installation
CAUTION
Take
extreme
care
not
to
get
grease
or
011
on
the
clutch
or
flywheel
frlc
hon
contact
surfaces
1
Place
the
clutch
disc
assembly
on
the
flywheel
With
the
longer
chamfered
splmed
end
of
the
dISC
toward
the
transmISSion
2
Visually
align
or
use
a
dummy
splmed
dnve
shaft
to
ahgn
the
diSC
assembly
With
the
flywheel
pilot
beanng
3
Install
and
tighten
the
SIX
bolts
holdmg
the
clutch
cover
assembly
to
the
flywheel
Tighten
the
bolts
a
turn
each
tune
by
diagonal
pattern
until
they
are
tight
Tlghtenmg
torque
should
be
174
to
188ft
lbs
24
to
2
6
kg
m
NOTE
There
are
two
dowels
on
the
flywheel
to
locate
the
clutch
cover
4
Remove
dummy
shaft
If
used
after
the
above
bolts
are
fully
tightened
5
Refit
the
release
bearing
and
translI11Ssion
case
Miscellaneous
Installation
1
Connect
the
fuel
hose
on
the
front
part
of
the
engme
to
the
fuel
pump
and
to
the
carburetor
2
Gap
the
spark
plugs
and
mstall
them
usmg
new
gaskets
3
Coat
the
rocker
arm
cover
gasket
With
sealer
and
position
It
on
the
cylmder
head
4
Install
the
rocker
arm
cover
and
tighten
the
two
thumb
screws
that
hold
it
m
place
5
Install
distrIbutor
makmg
certam
that
the
notch
on
the
distributor
shaft
assembly
mates
With
the
drive
spmdle
Ahgn
the
location
marks
made
dunng
disassembly
so
that
the
distrIbutor
is
positioned
as
before
6
Install
and
tighten
the
bolts
which
hold
the
dIStributor
to
the
front
cover
7
Install
pomts
condenser
and
rotor
8
Replace
distrIbutor
cap
and
attach
spark
plug
Wires
m
the
correct
sequence
Make
certain
that
all
wires
are
firmly
seated
m
the
distrIbutor
cap
and
attached
securely
to
the
spark
plugs
9
HOISt
the
engme
assembly
from
the
work
stand
10
Install
the
alternator
bracket
alternator
and
engme
mounts
to
the
block
11
Install
the
IgnItIon
coil
oil
filter
oil
pressure
SWitch
dipstick
and
water
drain
plug
12
Connect
the
vacuum
Ime
between
the
dis
trIbutor
and
carburetor
13
Connect
the
transIDlSSlOn
to
the
engine
prior
to
mstallatIon
m
the
vehicle
Engine
Installation
Installation
is
the
reverse
of
the
procedures
followed
m
removal
Be
certaIn
thatlall
battery
connections
are
made
that
water
hoses
are
se
cured
wmng
IS
connected
properly
and
that
all
required
bolts
and
mounts
are
mstalled
and
tightened
Replace
the
radiator
fan
belts
and
radiator
shroud
Fill
the
engme
With
the
proper
grade
of
oil
and
the
radiator
With
recommended
coolant
Install
the
hood
to
the
hInges
according
to
the
marks
made
dUrIng
removal
SERVICE
DATA
AND
SPECIFICATIONS
Table
1
covers
servIce
data
and
engme
Speci
fications
68
CHAPTER
SEVEN
Capacity
Test
Perform
the
capacity
test
only
when
the
statIc
pressiue
test
IS
withm
acceptable
lirmts
1
D
sconnect
the
fuellme
at
the
carburetor
2
Place
a
sUItable
container
at
the
end
of
the
fuellme
3
St
lrt
the
engm
and
run
at
OOO
rpm
4
The
fuel
pump
should
delIver
fuel
into
the
co
ntainer
at
a
rate
slightly
over
two
pints
per
minute
If
no
gasolme
or
only
a
lIttle
appears
the
fuel
lme
is
clogged
or
thefuel
pump
defectIve
Bef
removmg
the
fuel
pump
remove
the
gas
tank
filler
cap
dtsconnect
the
mlet
and
outlet
fuel
lmes
and
qlow
through
them
With
compressed
air
to
make
certam
they
are
clear
Reconnect
the
fuellmes
and
retest
the
flow
If
stIll
insufficient
the
fuel
p
mp
requires
servicmg
or
replacement
Fuel
Punip
Removal
and
Disassembly
1
Unscrew
the
two
mountIng
nuts
hOldmg
fuel
pump
to
the
cylmder
head
2
Disconnect
the
inlet
and
outlet
lines
3
Remove
the
fuel
pump
from
the
cylmder
head
4
Place
the
pump
on
a
work
bench
and
remove
the
screws
jommg
the
upper
and
lower
bodIes
5
Remove
the
cap
and
gasket
by
removing
the
cap
screws
6
Unscrew
the
elbow
and
connector
7
Remove
the
valve
retamer
by
unscrewmg
the
two
valve
retamer
screws
The
two
valves
are
then
easily
removed
8
To
remove
the
dIaphragm
spring
lower
body
seal
washer
and
lower
body
seal
from
the
lower
body
press
the
diaphragm
down
Wh1le
domg
thIS
cant
the
dIaphragm
so
that
the
rectangular
part
m
the
lower
end
of
the
pull
rod
unhooks
from
the
rocker
arm
lmk
ThIS
action
IS
shown
mFigure7
9
Drive
out
the
rocker
arm
pm
by
usmg
a
dnve
dnft
nd
hammer
Fuel
Pump
Inspection
1
Check
the
upper
and
lower
bodIes
for
cracks
2
Check
the
valve
assembly
for
wear
on
valves
and
springs
CD
3
Check
the
diaphragm
for
small
holes
cracks
and
wear
4
Check
the
rocker
arm
for
wear
where
It
con
tacts
the
camshaft
5
Check
the
rocker
arm
pin
for
wear
A
worn
pin
may
cause
011
leakage
6
Check
all
other
parts
for
abnormalItIes
or
defects
Replace
With
new
parts
as
reqUlred
Reparr
kIts
are
available
from
Datsun
dealers
and
parts
outlets
Fuel
Pump
Assembly
1
Assembly
of
the
fuel
pump
is
the
reverse
of
dlsassembly
2
Use
new
gaskets
durmg
assembly
and
mstanatIon
3
Lubncate
the
rocker
arm
the
rocker
arm
link
the
rocker
arm
pm
and
the
lever
pin
before
mstallatIon
4
To
test
the
operatIon
ohhe
fuel
pump
before
remstallatlOn
connect
a
three
foot
pIece
of
fuel
lme
or
hose
betweentbe
fuel
filter
and
the
fuel
pump
Hold
the
fuel
pump
at
the
end
of
the
fuel
lme
conSIderably
above
the
level
of
the
fuel
stramer
Operate
the
rocker
arm
by
hand
If
fuel
IS
drawn
up
to
the
pump
soon
after
the
pumpmg
actIon
IS
started
the
pump
IS
satIsfactory
5
Install
the
fuel
pump
to
the
cylmder
head
and
secure
the
mounting
nuts
to
the
studs
6
Reconnect
the
mlet
and
outlet
fuellmes
7
Check
the
operatIon
of
the
fuel
pump
by
runnmg
pressure
capaCIty
tests
as
descnbed
preVIously
FUEL
SYSTEM
71
Dash
Pot
Adjustment
The
adjustment
of
the
dash
pot
IS
done
by
warmmg
up
the
engme
properly
and
checkIng
If
the
throttle
lever
touches
th
dash
pot
stem
as
the
engine
reaches
1
800
and
2
000
rpm
under
no
load
conditIons
Proper
contact
between
the
throttle
lever
and
the
dash
pot
stem
produces
a
normal
dash
pot
performance
Should
a
normal
mcrease
m
engme
speed
not
occur
adjust
the
dash
pot
as
follows
1
Loosen
the
dash
pot
locknuts
2
Rotate
the
dash
pot
nght
and
then
left
3
Adjust
the
dash
pot
so
that
the
throttle
lever
hIts
the
stem
between
1
800
and
2
000
rpm
4
Fasten
the
lock
nuts
securely
5
The
clearance
between
the
throttle
valve
and
the
throttle
chamber
wall
should
be
0
0709
m
0
8mm
or
10
degrees
In
throttle
valve
angle
MAJOR
CARBURETOR
SERVICE
PROCEDURES
A
carburetor
m
good
operatIng
condition
will
delIver
the
pr
per
gasolme
and
aIr
ratIos
for
all
engme
runnmg
speeds
A
gradual
declme
In
smoothness
response
and
power
Will
occur
as
the
carburetor
slIps
from
adjustment
and
Its
delI
cate
parts
become
dirty
and
worn
Overhaul
should
only
be
attempted
by
an
expenenced
mechanic
Accurate
calIbratIon
of
passages
and
dIS
charge
hole
reqUIre
that
extreme
care
be
taken
In
dISassembly
cleanmg
and
reassembly
Use
only
a
hIgh
grade
carburetor
cleaner
and
com
pressed
arr
to
clean
parts
and
passages
Never
use
wire
or
other
pOInted
Instruments
for
clean
ing
CalIbratIon
of
the
carburetor
will
be
af
fected
The
procedures
below
are
generally
true
for
all
models
As
an
aId
Figures
13
and
14
are
typIcal
examples
of
the
carburetors
used
Carburetor
Removal
1
Remove
the
au
cleaner
by
dIsconnectIng
all
hoses
attached
to
It
remoVmg
the
two
bolts
holdmg
the
aIr
cleaner
to
the
support
and
loos
enmg
the
band
bolt
at
the
base
of
the
aIr
cleaner
2
DIsconnect
fuellme
vacuum
Ime
and
choke
wire
u
eqUIpped
from
the
carburetor
3
Remove
the
throttle
lever
4
Remove
four
nuts
and
washers
holdmg
car
buretor
to
manIfold
5
Lift
carburetor
off
of
manuold
6
Remove
and
dIscard
carburetor
to
manuold
gasket
7
Place
carburetor
on
clean
workbench
Carburetor
Disassembly
1
The
maIn
Jets
slow
Jets
and
needle
valves
on
both
the
pnmary
and
secondary
systenIS
are
accessIble
from
outsIde
the
carburetor
Refer
to
FIgures
13
and
14
for
locatI
n
2
The
choke
chamber
can
be
detached
by
re
mOVIng
the
connectIng
rod
pump
connectIng
rod
return
sprmg
stop
pm
and
the
set
screws
I
that
hold
It
in
place
3
The
pnmary
and
secondary
emulSIon
tubes
can
be
disassembled
by
remOVIng
the
mam
air
bleeds
on
the
respectIve
SIdes
4
To
check
the
accelerator
pump
remove
the
cylInder
cover
Be
careful
not
to
lose
the
return
spnng
and
Inlet
valve
at
the
lower
part
of
the
pIston
durmg
dIsassembly
5
Detach
the
throttle
chamber
from
the
float
chamber
by
remOVIng
the
rod
lInkIng
the
dia
phragm
WIth
the
secondary
throttle
valve
and
the
four
screws
that
hold
It
However
It
IS
preferable
to
leave
the
throttle
valve
mtact
unless
absolutely
reqUired
If
It
IS
necessary
to
dlS
assemble
the
valve
It
should
be
Installed
so
that
the
secondary
throttle
valve
will
be
gap
free
OtherwIse
stable
Idle
and
good
slow
speed
performance
will
suffer
is
To
check
the
float
the
float
chamber
cover
must
be
removed
I
7
The
dIaphragm
IS
dIsassembled
by
removing
the
set
screws
holdmg
the
dIaphragm
chamber
cover
In
reassemblIng
the
diaphragm
be
careful
not
to
turn
the
edge
of
the
dIaphragm
up
8
In
dlsassemblmg
and
reassembling
the
mter
lockIng
lInks
take
care
so
that
each
lInkage
has
a
smooth
actIon
and
that
parts
are
not
forced
mto
pOSItIon
9
For
vehIcles
equipped
With
an
automatIc
choke
remove
the
brmetal
case
by
releasmg
the
set
screws
The
bimetal
1l
extremely
senSItIve
COOLING
SYSTEM
8S
and
In
those
with
exhaust
and
evaporatIve
emIS
sion
control
devIces
a
fan
clutch
IS
combIned
WIth
the
thermostat
to
detect
temperature
m
the
engme
compartlnent
When
the
temperature
nses
the
thermostat
detects
the
change
an
the
fan
clutch
engages
thereby
helpmg
to
cool
the
engme
WATER
PUMP
Figure
2
page
86
IS
an
exploded
drawmg
of
the
water
pump
and
fan
assembly
for
1970
to
1971
The
top
half
of
the
IllustratIon
applIes
to
those
models
WIth
exhaust
and
evaporatIve
emiSSIOn
control
systems
The
bottom
half
covers
models
WIth
a
crankcase
emiSSIon
control
deVIce
only
Figure
3
page
87
IS
an
exploded
drawmg
of
the
water
pump
and
fan
assembly
for
1968
models
Without
exhaust
or
evaporatIve
controls
Figure
4
page
88
shows
the
1968
model
With
emISSIon
control
deVIce
As
can
be
seen
from
the
illustratIons
most
dIfferences
eXISt
withIn
the
fan
clutch
assembly
Water
Pump
Removal
1
Remove
upper
and
lower
radIator
hoses
from
the
thermostat
housmg
and
cylmder
block
re
spectIvely
Dram
coolant
from
rad1ator
and
cylInder
block
2
Loosen
the
alternator
mountlng
bolt
and
the
adjustIng
bolt
on
the
alternator
mountIng
bracket
3
Move
the
alternator
toward
the
cylinder
block
untIl
slack
IS
eVIdent
10
the
fan
belt
Re
move
fa
belt
fro
alternator
water
pump
and
crankshaft
pulley
4
It
IS
difficult
to
remove
the
water
pump
from
the
front
housmg
With
the
radiator
and
top
shroud
10
place
so
remove
them
5
Remove
the
bolts
holdmg
the
fan
assembly
to
the
water
pump
and
remove
the
fan
assembly
6
Remove
the
bolts
holdmg
the
water
pump
to
the
front
housmg
as
shown
In
Figure
S
Water
Pump
Disassembly
Repair
and
Assembly
Disassembly
or
attempted
repaIr
of
the
water
pump
assembly
IS
not
recommended
If
the
pump
assembly
IS
corroded
the
vanes
are
dam
aged
or
the
bearmgs
are
nOISY
replace
the
entIre
umt
1
Inspect
the
water
pump
assembly
and
replace
If
reqUIred
2
If
the
water
pump
assembly
IS
stIll
serVIce
able
clean
It
thoroughly
before
mstallatIon
3
Assemble
the
water
pump
assembly
m
the
front
cover
10
the
reverse
order
for
disassembly
Do
not
reuse
old
gaskets
4
Replace
the
fan
assembly
on
the
water
pump
and
mstall
the
radiator
and
top
shroud
5
Inspect
the
fan
belt
carefully
for
SIgnS
of
wear
or
cracks
DIscard
It
If
10
doubt
6
Install
the
fan
belt
around
the
crankshaft
pulley
water
pump
pulley
and
the
alternator
pulley
7
Adjust
the
alternator
on
Its
bracket
so
there
IS
no
more
than
0
5
10
deflection
of
the
fan
belt
when
pushed
10
by
thumb
pressure
8
TIghten
alternator
bracket
adjustIng
bolt
and
alternator
mountmg
bolt
securely
9
Install
the
upper
and
lower
rad1ator
hoses
and
tIghten
securely
10
Refill
the
radIator
and
coolmg
system
With
approved
coolant
or
water
NOTE
Because
of
the
many
aluml
num
parts
In
the
engine
a
hIgh
qualIty
antI
freeze
compound
should
be
used
In
the
cooling
system
11
Start
the
engme
and
run
untIl
operatIng
temperature
IS
reached
or
untIl
you
re
sure
the
thermostat
has
opened
and
coolant
IS
CIrCulatIng
throughout
the
entIre
coolIng
system
Top
up
radIator
as
reqUIred
90
CHAPTER
EIGHT
degrees
C
The
maXImum
WIdth
of
the
thermo
stat
openIng
should
be
0315
In
8mm
3
If
the
thermostat
IS
defectIve
or
If
you
have
an
doubts
about
It
mstall
a
new
one
4
When
Installmg
the
thermostat
m
the
hous
Ing
be
certaIn
to
place
the
spnng
end
down
Coat
both
SIdes
of
the
gasket
WIth
sealer
to
pre
vent
leaks
and
tIghten
the
mountlng
nuts
securely
RADIATOR
The
radIator
IS
of
conventional
desIgn
A
draIn
cock
IS
proVIded
at
the
bottom
back
to
perrmt
drainIng
The
system
IS
pressurized
and
the
rehef
valve
incorporated
In
the
filler
cap
mamtains
the
pressure
at
approximately
12
8
Ib
in
0
9
kg
cm
Coolant
capacity
is
1
691
gallons
6
4
lIters
Figure
8
shows
radIator
com
ponents
Note
that
vehicles
equIpped
WIth
auto
matIc
transmISSIon
have
provlSlons
for
connect
Ing
the
011
cooler
lInes
to
the
bottom
of
the
radiator
Radiator
Removal
Inspection
and
Replacement
1
Remove
the
upper
and
lower
radIator
hoses
to
draIn
coolant
2
Remove
four
machme
screws
securmg
radIa
tor
shroud
3
Remove
four
hex
bolts
secunng
rad1ator
to
mountlng
bracket
4
Remove
shroud
and
radIator
from
vehIcle
5
Inspect
radIator
for
SignS
of
leaks
RepaIr
or
replace
as
required
6
InstallatIon
IS
the
OppOSIte
of
removal
CD
14
1
Radiator
assembly
10
Plain
washer
2
Radiator
assembly
11
Plain
washer
automal1c
12
Hose
clamp
3
RadIator
cap
assembly
13
Hose
clamp
4
Drain
cock
handle
14
Radiator
shroud
5
Drain
cock
packing
15
Machine
screw
6
Upper
hose
16
Plain
washer
7
Lower
hose
17
Spring
washer
8
Hex
bolt
18
Hex
nut
9
Hex
nut
19
011
cooler
hoses
Automatic
only
2
i
7
1213
91
CHAPTER
NINE
bon
the
serIes
coll
demagnetizes
agatnst
the
shunt
cOIl
The
return
spnng
causes
the
plunger
to
return
to
the
origmal
posItIon
stoppmg
the
starter
The
overrunnmg
clutch
provIdes
for
positIve
meshmg
and
unmeshmg
of
the
pmlOn
gear
and
flywheerrmg
gear
and
perinitStlie
pmlon
to
overrun
the
armature
after
the
engme
has
started
CONSTRUCIlON
A
typical
Datsun
starter
motor
is
shown
m
Figure
3
The
example
is
for
1971
models
but
about
the
only
dIfferences
existing
between
It
and
other
models
are
the
number
of
elements
used
in
the
dust
cover
and
the
number
of
thrust
washers
Removal
1
DIsconnect
the
battery
ground
cable
2
Disconnect
the
black
yellow
wire
from
the
magnetIc
sWitch
tennmal
on
the
solenoid
3
Disconnect
the
black
battery
cable
and
red
wire
from
the
battery
tennmal
on
the
solenOId
4
Remove
two
bolts
holdmg
the
startmg
motor
to
flywheel
hOUSIng
The
battery
ground
cable
is
attached
to
the
flywheel
hOUSIng
bottom
bolt
5
Pull
starter
motor
toward
front
of
engme
and
remove
Disassembly
1
Remove
the
nut
holdIng
the
electrIc
WIre
to
the
magnetIc
sWItch
M
tennmal
DIsconnect
the
WIre
2
Remove
three
screws
securmg
magnetic
switch
assembly
to
yoke
Remove
magnetic
sWItch
assembly
and
dust
cover
s
Figure
4
3
Remove
two
through
bolts
and
brush
cover
assembly
as
shown
m
Figure
5
4
Remove
the
yoke
assembly
by
tappmg
lIghtly
as
In
Figure
6
5
Remove
bolt
nut
and
washers
at
base
of
yoke
to
free
shut
lever
WIthdraw
the
armatlIre
and
shut
lever
as
shown
m
Figure
7
6
Remove
the
pInIOn
stop
nng
located
at
the
end
of
the
armature
shaft
To
remove
the
stop
nng
push
the
stop
nng
to
the
clutch
SIde
remove
the
snap
nng
and
Withdraw
the
stop
nng
and
CD
c
0
I
CD
Ml
ml
CD
a
I
II
0
l
g
I
o
24
21
TO
oto
25
1
17
18
19
o
15
16
20
@
1
IgnItIon
coIl
2
Ignlllon
COIl
resls
Ol
3
p
II
lS
sere
ll
4
spnng
lles1
Br
5
PlaIn
wesner
6
illstl
OUtor
assembly
1
illstllbu
Ol
sUP
rt
II
sere
ll
9
spnng
wesner
10
0
ling
11
Ills
nbutor
gasket
12
llolt
13
VaCUum
control
tube
14
Vecuum
tube
grommet
IS
spar
plug
IIeslIer
1
sperll
plug
11
111gb
tenSIon
cable
18
IIlglllenSIOn
cable
19
lI
gll
tensIon
cable
20
IIlgII
tensIon
cable
ii
lIlgII
tenSion
cable
22
Ceble
older
23
Cable
c1emp
24
cable
clempllOlder
25
Ceble
clemp
J